Wildlife Conservation in Arenal and Bocas del Toro

Feb 28, 2026

Every year on March 3, World Wildlife Day prompts a global conversation about the species we share this planet with. The United Nations established the observance in 2013 to build accountability around the pressures that push species toward the margins: habitat destruction, illegal trade, climate change, and the compounding effects of human development on the ecosystems that wild animals depend on.

We operate inside two ecosystems of global biological significance: Costa Rica's Arenal region and Panama's Bocas del Toro archipelago. The animals that live here, in the canopy above our properties, in the reef below our overwater villas, in the mangroves that line our island shores, are not amenities. Their presence reflects real ecological conditions. Their wellbeing is both a measure of ours and a responsibility we accepted when we chose to build here.

Key Findings

Central America holds an estimated 7–10% of all known species on Earth in less than 0.5% of its land area, the result of geology, climate, and decades of deliberate conservation.
At Nayara Tented Camp, a reforestation program turned cleared pasture into a functioning habitat corridor. Sloths returned on their own when the canopy closed.
In Bocas del Toro, reef, mangrove, and rainforest operate as a single system. Conservation that treats them separately will fail.

The Land Bridge and What It Means

Central America's extraordinary biodiversity is a consequence of geography. For most of the planet's history, North and South America were separate continents, each evolving its own fauna in isolation. When the Isthmus of Panama closed roughly three million years ago, the biological exchange that followed was one of the most significant events in the history of life on land. Species moved in both directions. Populations diverged into new forms as they adapted to unfamiliar habitats. Marine species separated as the Atlantic and Pacific became distinct bodies of water.

What remained after that exchange was a narrow strip of land with a disproportionate share of the world's biological complexity. Costa Rica, with an estimated 500,000 species in a territory roughly the size of West Virginia, contains a larger share of global biodiversity than most continents. The Arenal Conservation Area alone spans over 500,000 acres, climbing from lowland rainforest through cloud forest and functioning as a vertical cross-section of that complexity, stacking distinct ecosystems on top of one another along its volcanic slopes.

Understanding this context matters because it changes the stakes of every development decision. When habitat is fragmented here, the consequences ripple across a web of interdependencies that took millions of years to form. Restoration, correspondingly, is not just about one species or one parcel. It is about reconnecting a system.

Turning Pasture Back into Forest

The land beneath Nayara Tented Camp was cleared pasture when we acquired it. Open. Exposed. Functionally empty. No canopy, no food web, no connection to the surrounding rainforest. We made a decision early on: this would not be a project built on degraded land. It would be a project that reversed it.

The work began with species selection. Fast-establishing native trees were introduced to rebuild canopy quickly while restoring habitat at the same time. Cecropia became foundational. It colonizes disturbed land rapidly and produces the leaves sloths depend on. As the canopy closed, structure returned. Shade stabilized the understory. Insects reappeared. Movement corridors formed overhead.

The sloths came back on their own. That is the only outcome that matters. When the right trees are planted in the right way, wildlife follows the food. Two species now live here year-round, monitored by resident naturalists tracking movement, condition, and habitat use. The sloth is not a symbol. It is a living measure of whether the forest is functioning.

See how sloths became the clearest indicator of reforestation in What the Sloth Reveals About Regenerative Travel at Nayara.

The Ecological Roles That Actually Matter

Wildlife coverage tends to focus on charisma: size, color, rarity. But the species that matter most to an ecosystem are often the ones doing the least visible work. Three animals in the Arenal ecosystem illustrate what happens when you look past spectacle to function.

The toucan family. Keel-billed, chestnut-mandibled, and collared araçarí toucans move through the mid-canopy consuming large fruits that most birds cannot process. As documented by the Cornell Lab of Ornithology, these birds are among the most effective seed dispersers in Neotropical forests, carrying seeds in their gut across distances that determine where the next generation of large-seeded trees germinates. Lose the toucans, and you do not just lose the spectacle. You lose a critical mechanism of forest regeneration.

The mantled howler monkey. The IUCN Red List records the Arenal population as stable, which is a conservation achievement worth naming. Howler monkeys are canopy-dependent: they cannot safely cross open ground, which means every break in forest cover is a hard barrier to movement, gene flow, and population health. The canopy corridors Nayara has planted are, among other things, howler monkey infrastructure. Their morning calls across the valley are not atmosphere. They are evidence that the corridors hold.

The white-nosed coati. Visible on the forest floor, often dismissed as approachable and unexceptional, coatis are in practice ecosystem engineers. Their foraging behavior turns soil, suppresses insects, and disperses seeds across the undergrowth in ways that shape forest floor composition over time. Ecosystems without adequate populations of mid-level foragers show measurable degradation in structure and diversity. The coati's continued abundance here is another verdict: the understory is intact.

Each of these species tells you something specific about the health of the system it occupies. Together, they constitute a living audit.

Bocas del Toro: One System

The standard way to describe Bocas del Toro is as a place where reef, mangrove, and rainforest meet. That framing is convenient but misleading. These are not three ecosystems that happen to share a coastline. They are a single functioning system in which each component is structurally dependent on the others.

The Smithsonian Tropical Research Institute has studied this system since establishing its research station here in 1998. What that research makes clear is that the causal chains run in every direction: mangrove root systems filter the terrestrial runoff that would otherwise smother reef corals. Reef structures shelter juvenile fish that will eventually feed the dolphins and sharks patrolling deeper water. Rainforest canopy stabilizes soils that, if eroded, would carry sediment into shallow-reef zones and cut off the light that coral requires. Seagrass meadows between mangroves and reef provide the feeding grounds on which sea turtles depend.

Conservation strategies that treat any one of these components in isolation are not conservation strategies. They are delay. At Nayara Bocas del Toro, we operate with a whole-system awareness that shapes decisions about where boats travel, how lighting is managed, what materials enter the water, and when and how guests access sensitive zones.

Explore the science behind how these ecosystems shape human health in Nature-Based Wellness .

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Four Species and What Their Presence Means

If an animal's presence is a verdict on the system it inhabits, the waters of Bocas del Toro are delivering four separate ones simultaneously.

Bottlenose and spinner dolphins. Dolphin Bay's resident populations are among the most reliable indicators of water quality and prey abundance in the archipelago. Dolphins are near the top of the aquatic food chain; their sustained presence means the trophic levels beneath them are functioning at sufficient scale. Their absence or decline would be an early warning of systemic stress that would likely not register in any other visible way until it was already severe.

Leatherback sea turtles. The leatherback is the largest living reptile and one of the most ancient lineages of animals nesting on Bocas del Toro's beaches, typically between March and July. NOAA Fisheries documents their annual transoceanic migrations spanning thousands of miles; they return to the same Caribbean beaches year after year. Their continued nesting here depends on beach quality, darkness, and the absence of boat traffic and disorienting light that causes females to abort nesting attempts and return to sea. Every nest is a verdict on whether we have protected the conditions they require.

Nurse sharks. According to the Florida Museum Shark Research Program, nurse sharks are benthic predators that rest on the seafloor during the day and hunt invertebrates at night. Docile and largely uninterested in human divers, they are easy to overlook. Their population density in Bocas del Toro's shallow reef zones reflects the health of the seafloor communities they feed on, and the absence of the overfishing pressure that depletes them elsewhere. Globally, the IUCN estimates that roughly a quarter of all shark and ray species are now threatened, making healthy populations like those in Bocas a genuine conservation bright spot rather than a given.

Panamanian night monkeys. Research published in the American Journal of Primatology describes the Panamanian night monkey's dependence on undisturbed habitat and near-total darkness for successful foraging and reproduction. Artificial light at the wrong intensity disrupts their activity cycles and compresses their effective habitat range. Monitoring their presence near the property is one of the ways we track whether our light management practices are working.

What Comes Next

The United Nations' framing for World Wildlife Day is consistently future-facing: what does the next generation inherit, and what choices determine that. For us, the question is more immediate. What choices are we making right now, in the properties we manage, in the ecosystems we operate inside, that will determine whether the species living here continue to do so.

A sloth does not care about our intentions. A leatherback does not read our sustainability reports. A howler monkey does not distinguish between a resort that claims to protect the forest and one that actually does. The only thing any of them responds to is whether the conditions for life are present or absent.

That is the standard. Everything else is narrative.

Frequently Asked Questions

Why is Central America one of the most biodiverse regions on Earth? The formation of the Isthmus of Panama roughly three million years ago connected two continents that had evolved in isolation, triggering a massive biological exchange. The resulting overlap of North and South American species, combined with dramatic elevation gradients and multiple climate zones compressed into a narrow land bridge, produced extraordinary species density in a very small area.

How do mangroves protect coral reefs? Mangrove root systems filter terrestrial runoff, trapping sediment and absorbing excess nutrients before they reach reef zones. Without this filtration, sediment smothers coral and nutrient overload fuels algal blooms that outcompete reef-building species. In Bocas del Toro, the proximity of mangrove, seagrass, and reef makes this relationship unusually direct.

How did sloths return to Nayara's grounds? Through the reforestation program. Sloths depend on continuous canopy cover and specific food sources. As the planted trees matured and the canopy closed, the conditions sloths require were restored. They were not introduced. They moved in when the conditions were right.

Are the dolphins in Bocas del Toro resident or migratory? Resident. Bottlenose and spinner dolphins live year-round in the protected channels of the archipelago, which provide the calm water and prey availability that support permanent populations.

Why does light management matter for night monkeys and sea turtles? Both species are highly sensitive to artificial light. Leatherback females will abort nesting attempts on beaches they perceive as too bright. Night monkeys require near-darkness to forage and reproduce successfully. Lighting protocols at Nayara Bocas del Toro are designed with both in mind.

What makes the reef-mangrove-rainforest system in Bocas del Toro unusual? The level of physical and ecological overlap. In many coastal regions, these ecosystems are geographically separated. In Bocas del Toro, they are stacked on top of one another, making the interdependencies unusually direct and the consequences of disturbance in any one zone immediately felt across the others.

Can guests observe wildlife at Nayara's properties without disturbing it? Yes. On-staff naturalists guide all wildlife observation at both the Arenal and Bocas del Toro properties, with protocols designed to minimize disturbance. Observation distance, timing, and behavior norms are calibrated to the specific sensitivities of each species encountered.